Shift-device lock mechanism.



G. C. JENSEN.

SHIFT DEVICE LUCK MECHANISM} APPL'ICATION FILED DECJZ. [917.

1,276,926. Pnteni'eeji Aug. Mia

WITNESS: F VVEA/TOR.

BY -W m A T'] 'OR N GEORGE C. JENSEN, OF OAKLAND, CALIFORNIA.

SHIFT-DEVICE LOCK MECHANISM.

Application filed Dcecmbcr 12. 1911.

ing is aspeei fication.

' lnot'eun-nl. of the. blocks or rods. and at l ll(!- .whcrein the speed In motor vehleles as at. present. eonstr'ueted several types employ a variable speed power transmitting mechanism ears or members are moved to theiiuyaria in speed positions-by suitahie shifting blocks either slidahly mounted on or movable with a gear shifter --rod. These rods are generally two in num her. sometimes three, and in'their adjusted .po'sitionare retained by suitable yielding plimgers'cnrried hy thegcar case or the gear 'qase covfen;

.f-i-liesnresent' nt'cntion relates to a suitable locking mechanism for locking tho shifter rods. when the same are movable, or the shifter blocks-when the same are morahleionthe rods; in locked position through isaidplungersito prevent; the operation of the rer transmitt nggears'frmn a certain set.

m'sltion thusmrcoluding tho operation-by tht-l i'ehide under Its own power by unan:

thoriz ed nersons. D v

Thcfinycntlon hasfor its n'uuapnl fobts 'to provide a construction whcreinpius or other meanseotipcratc' with the piungers h 'or zdirectly with the rods or blocks and are. l r

carry the longitlldlnnlly luorahleigcar shift cupal'rleiof positioning h\' the operation of a suitiililc. look' controlled mechanism to engage said shift blocks or rods to prevent; the. uun'cnn-ntthereof for the actuation of. tln-speed gn ars. and which pins and plungers on.. thc reicasc of said "lor' control mechanisn'i are released to permit of ilit oln't'ilt'lvt'.

Hamcttime to hold or retain them injhoil' 'tlna -companying drawings. and so! forth in. .thc olai|ns lwreto appcndcd. it. lming nnglcrstlmd that varmus rhangcs lit the form. n-o mrtion. size and uunor dctads of non- -struclion within lll(' .\'l'll|lt til llnclaims may l c l'i'sol'lctl to without dcpartiug from tho Specification of Letters Patent.

To more fully comprchcnd the lll\'t'lllioll rcfcrcln'c is directed to the m-co|u mu \'ing drawings. in-rein:

Figure l is a vertical sectional view of the preferred embodiment of my invention.

Fin. .5 is a sectional view lnkenon the line 2 2 of Fig. I viewed in the direction of the arrows.

Fig. it is a vertical sectional view takcn on the line 3+3 of Fig. I. viewed in the direction of the arrows.

Fig. 4 is.a vicw ofthc locking constrnr tions as applied to the shifterhlocks whcn said shifter hlocksarc slida lo on the shifter rods.

Referring morc nartirnlarly to the sew oral view of the drawinggs. wherein like characters of reference. dcsignate corres mnding parts. 1. illtllttllll'h' a suitable-gcar case norm" or gear ease. int-losing. any well known type of variable s -ed 'powcr transmitting mechanism or gen .-..not. illustrated." Disposed within the gear case or cover aret'he parallel horizontally extending shifterrotls 2: in Figs. [.2 and fttlnrods 2 areLiIIustraMI as hcmg longitlnlinally .luorahlc, while in Fig. 4 the rods 2 are fixed at thcir opposite ends to prevent longitudinal movement ;thcrcof. The longitudinally luovahhl'lkls-cni'i'i' the lixcd gear shifter him-ks extending downwardly into'gthe. gear case and haying o'pcrative engagement with the 1- ma inorahlc goals of the transmissio while [the lixcd iiids. jwheu- .tln.- same arm'l-nlhloyml hlocks 1'. of a similar construction tzo 'that. illustrated in Fig. 2'. To incllnler'hoth coir strut-lionsilltlstl'atcd in Figs. 1. 2 and 3 and l. the shi ftcr rods and blocks archereinafter ltftll'ttl to as dcrices. and said devices are providcd in 'on(- snrl'acc with V- shapcd notches or recesses 4. for the rccc 'ition of the tact at. their lower end with the, lower end of upper end of the bore as in Fig. 1 of the drawings. The opposite end of said casing I 8 is provided with a bore 12 extending transversely theret-hrough in a plane parallel with said stud 10, said bore having a contracted opening 13 and within which is adapted for insertion a retaining screw or bolt H'terminating at its lower end in a threaded stud 15 which has threaded engagement as at 16 with the upper threaded end of the adjacent bore 7. It will be apparent by providing the casing 8 with an in tegral stud as at 10 and with a removable locking screw or bolt 14 that said casing is capable of being readily attached by threaded connection with the res ective stationar bores 7. The screw or b t 14 is provid in its upper end with a transversely disposed 'bore' or channel 17 .to register with the bore 9 in the casing 8 when said screw or bolt is in operative position, asin Figs. 1 and 2 of the drawings. The studs and are each 'provided with a vertical bore or guide 18 within each of which is'positioned a plunger locking pin 19, the lower end of each of which projects into a suitable recess 20w1thj in the u per ends ofthe respective plungers,

and sai ins are of-a length that when the u per en s thereof are flush with the lower ge of the respective bores '8 and 17 to contherecesses when said plungers are seated in the notches 4. A coiled spring20' is positioned within each of said recesses 20 surrounding tlfi respective pins 19 and are held under compression by the ends of the respective studs- 10 and 15 to maintain the lower ends of the 'plunger's in frictional contact with the devices.

Mounted for-axial rotation within the cas ing 8 and extending into the respective alined bores 17 and 9, is a suitable locking shaft 21, one end of which projects exteriorly of the casing 8 and carries an angularly disposed operating handle or portion I 22. The locking shaft is formed at its inner end with a. contracted portion 23 which is surrounded by a coil spring 24 attached at one end as at 25-to the casing 8, and at .its opposite end as at 26 to the shaft, the tension of said spring rotating the shaft from locked to lmlockcd position, Figs-l and 3 of the drawings; in register with the upperthe shifter devices. ()n the manual rotation of the shaft- 21 against the action of the spring 24 to a position as in Figs. 1 and 3,

'caln portions 27 thereof imme the exteriorsurface of the shaft is moved into contact with the upper ends of the respective pins forcing the same downwardly into the recesses in their respective plungers and preventing upward movement of the plungers .from the notches 4, thus locking the shift devices in their set position.

The casing 8 is preferably provided with a portion 28 providing a lock casing and said lock casing is formed with a bore or channel 29 intersecting the bore 9, as in Figs. 1 and 2 and opening at the outer end of the casing 28. At the point of intersection of the bore or channel 29 with the bore Q-the' shaft 21 is provided with a transverse semicircular groove 30, within which is adapted for reception the peripheral edge of a shaft locking bolt 31, axially rotatable within the bore or channel 29. Said locking bolt bein .provided at its lower end with a contracted portion 32 about which is coiled a spring 33 secured at one end as at 34 to the bolt and at its opposite end being received in a groove in the side wall of the bore or channel, 29. The )eripheral surface of the bolt 31 is provided at a point in line with the shaft 21 with a semi-circular recess or cut out portion- 36 of a depth corrcspondin to that of the cut out portion 30 irnthe s aft, and when said out out portion 36 and portion 30 .are in register, axial rotation of the shaft 21 is permitted, but when the eripheral surface of said bolt 31 is rcceivet in said recess 30 of the shaft 21 axial movement of. said shaft is necluded and the same is retained in its h cd position and ispreventedfrom longitudinal movement within the bore 91as in Fi 1 and 2 of the drawings. The up or cnt -of the bolt 31' is provided with a suita le finger or lug 37 which is adapted to have operative engagement with a correspondin' finger or lug 38 carried on. the lower end 0 a suitable key-controlled locking barrel 39' positioned within and closing the upper end of the bore 29. The manual operation of the locking barrcl 39 throught-he controllin key therefor, axially rotates the holt31 to position the cut out portion 36 thereof in register with the cut out portimrBQ, in the locking shaft 21. at which time the 'spll will axially rotate said shaft to (position the H iatcly over the pins 19 permittingthe ii .IIiOVQ- 'tion' the plungcis (i are yieldably seuted' against the action of springs 20 and are meat of the plungeis 6 when t eshiftel'sdecapable of longitudinal movement within their respective bores 7 on the movement of the shifter devices to position diii'crent sto 4 thereof in cooperative relation with t e 'lowcr pointed ends of said plungers on the shifting of the gear elements, said plungers preventing accidental movement of the shifter devices when said plan-gels are seated in the respective stops 4. 'hen'the construction is in nnloelual or released position as before described the rut out tilt is in alinement with tlfe rut out Zltl permitting an axial lnovement' of the shaft 21. by pressure applied to the lever and on such axial rotation of the shaft against the tension of the. spring 24 and to a position where the cut outs 30,and 36 are in register. the spring 33 willcause an axial rotation of the bolt 31 to position the peripher thereof within the cut out 30. at which time the bolt 20 lies in a position as in Figs. 1. 2 and 3 of the drawings. with the pins 1!) in contact with the periphery of the shaft and with the lower endsof the recesses in the plungers 6 thereby locking the phmgers frolnlnm'ard lineal niovement in their respective bores and looking tiles-hitting devices in set; position. Q If desirable suitable washers or gaskets lna) l )e-e1nployed to maintain a tight fit be tween the upper ends of the walls-of the 2'. bmies' hd theeasings 8 and between the lowp jd of the screw; or bolt. 14' and the eontraetedzportion 13 of the bore 12. An escutch' plate 41 mar also be provided 6 o ening of the lock barrel to ex- 4 din! tint dirt'therefrom.

" rent that I have provided a conpahle of being' positioned for coth the commonly used} loek rs o'rfretainingi the shift, devices-in 1 t lon and one which is capable of opoeksaid plungers so that. the same. nted from movement andthus loek d i'ees in their position.

bination with a fixed member. a plurality of fshifter de\"'iees moyable rela- 4 tiyely thereto and in parallel plaues and each "I provided with a stop. a plurality of yieldably mounted retaining plungers carried by said fiXedJmemla-r and one cooperating with the stop ofeaoh shifter device for retaining therespeetiveshifter devices in their set po- 'sitionsesaid lungcrs eapable of disengage .Jnent froiir heir respeeti ve stops on the movement =of;the respective shifter deriees, a and a lot-l: controlled mechanism earried by n said lixed member and capable of operation to simultaneously.lock said plungers in coo'perative relationwith their respective stops @to'loelt sa'id shifter devices in their set posi' tion.

5 2. in combination with a fixed member a shifter deviee movable relatively thereto and provided with a stop. a yieldably mounted retaining plpng'er ea rried by said fixed membet and,. "perating with said stop. means for yieldii ily maintaining said plunger in eontaet with said stop for retaining said shifter derieein set position. aid plunger capable of disengagement from said stop on the movement of said shifter deriee. a look pin cooperating with said plunger. and a lock controlled mechanism for actuating said pin to lock said plunger in locked engagement with its stop.

it. In combination with a lixed member provided with a plurality of parallel bores internally threaded at their upper ends. a plurality of shifter devices movable. rela ti\'el thereto and each provided with a stop. a movably nmunted retaining plunger positioned in each of said bores and one cooperatinp with each of said stops, nn-ans for 'ieldahl v maintaining said plungers in contact with said stops or retaining said shifter devices in set position, a tubular casinn provided with ajlaterally extended tubular stud for threaded connection with one ofsaid bores. a tubular bolt passing through said casin for detachable connection with another 0 said lmres. and a lm'k-eontrolhal mechanislil carriedlrv said casing'and capable. of 'operation to lock saidplunge'rs in locked engagement with said stops :anil' to lock said casing to saidtiaedfinem'berl 4. 'In combination- \vitlrajtiXed member a shifter derire morallle relat-ivel ,thereto and provided with a stop, a 'Jdably mounted retaining: phun eiirried lri said tixed member and (*(iiitti'tttiiil! with said stop means .t'or yieldahy'nuii'ntai'ni'n said plunger In contact w th saidsto'p v or 'retaming said shifter devtceinSet: )OSlti OtE EI lock pin"cooperating with said p un'ge axially rotatahle'locking shaft eoiiper with said pin and capable ofLopera'tiou 'to force the pin into engagement wit plunger to lock the danger, iii en igze nnjnt, with its stop. and loe; mmlImam-Ionian cooperating with said i the. rotation thereof.

I. In '(annbiuatiou with a tixed member provided with a plurality ofparallel.bores. a plurality of shifter devices movable relatin-Iv thereto and each provided with a still). a vieldahly mounted retaining plunger mounted n 'earh of said bores and one rooperating with each of said stops. means for vieldabl v maintaining each of-said' l'ilungers in contact with said stops torrretaiui-ng said shifter devices in set position. a tulmlar casing provided with a laterallv extemled tubular stud for connect ion with one of said bores. a tubular bolt iassingangln larl v through said casinp andordehuha le connection with another of said bores; :t rotatable shaft within 'said easingltv .said shaft retainin; said casing and bolt to said lixed member. am] a pin roiiperatinfi with eznh of said plungers and 'llll said shaft. for niaintaiuin; the plungers stationar in engagement with their respective stops on the relation of said shaft in one direction.

I In com ination with a tix d member rovided with a plurality ot iparallel bores. a pluralilv ot' shifter devirestmovable relall\'(l thereto and each proivided with a shaft y forcold rolling 'bu ar stud for connection wlth one of said bores, a tubular bolt passing angularly through said casing and o r detachable connection with another of said bores, a rota-' table shaft within said casing said shaft retaining said casing and bolt to saidfixed member, a pin cooperating with each of said plungers for maintainin the same stationary in engagement wit their respective sto s on the rotation of said shaft," and a he controlled mechanism carried by said casing and cooperating with said shaft for locking the same from axial rotation and from removal from said casing.

I vice in its set position sai 7. In combination ,with a movable shifter device rovided with a stop, a yieldably mounte plun er normally cooperating with said stop or retainin said shifter de- (5 plunger capable of disengagement. from said stop on the movement of said shifter device, and a lock controlled mechanism capable of operation to lock said plunger in cooperative engagement with said stop to prevent movement of said shifter device from its set osition.

8. In combination with a mova device rovided with a stop, movable means normalFy engaging said stop for retainin said shifter device in its set position, sai movable means capable of disengagement from said stop during the movement of said shifter device, a locking bolt capable of operation to lock said movable means in cooperative engagement with said stop vent movement of said shifter device from its set position, and a lock for controlling the operation of said bolt.-

In testimony whereof I have signed my to pre-' 1e shifter name to this specification in the presence of two subscribing witnesses.

- GEORGE'C. JENSEN. l messes:

E. A. Mann E. R. ANDRE: 

